{"id":"CVE-2026-71921","title":"Multiple DrayTek VigorSwitch models contain a pre-authentication command injection vulnerability in the setget.cgi interface","summary":"Multiple DrayTek VigorSwitch models contain a pre-authentication command injection vulnerability in the setget.cgi interface. The vulnerability is caused by insufficient filtering of the pass field before command execution. A remote atta…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-78"],"published":"2026-08-24","updated":"2026-10-13","sourceUpdated":"2026-10-13T09:10:00.323","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-71921","references":[{"url":"https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-pre-authentication-os-command-injection-via-setget-cgi","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.02787,"epssPercentile":0.86034,"ingestedAt":"2026-10-13T09:20:23.183Z","slug":"CVE-2026-71921","body":"## Overview\n\nMultiple DrayTek VigorSwitch models contain a pre-authentication command injection vulnerability in the setget.cgi interface. The vulnerability is caused by insufficient filtering of the pass field before command execution. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.6,"exploitation":0,"ransomware":0},"changes":[]}